Crossword Genius

Chip installed in present PC? (7)

Ross

I believe the answer is:

officer

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'pc?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'chip installed in present' is the wordplay.
'chip' becomes 'IC' (abbreviation for Integrated Circuit).
'installed in' indicates putting letters inside.
'present' becomes 'offer' (I've seen this in another clue).
'ic' inserted into 'offer' is 'OFFICER'.

Can you help me to learn more?

(Other definitions for officer that I've seen before include "Police(wo)man" , "Person holding a commission in the services" , "'An ... and a Gentleman, film (7)'" , "Person with authority or command" , "Major, say" .)

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